diff --git a/packages/taro-platform-harmony/src/components/components-harmony-ets/style.ets b/packages/taro-platform-harmony/src/components/components-harmony-ets/style.ets
index 08ad4d28ced..5df8a34458f 100644
--- a/packages/taro-platform-harmony/src/components/components-harmony-ets/style.ets
+++ b/packages/taro-platform-harmony/src/components/components-harmony-ets/style.ets
@@ -369,16 +369,20 @@ export function setNormalAttributeIntoInstance(instance: CommonAttribute, style:
   }
   if (style.position === 'absolute' || style.position === 'fixed') {
     instance.position({
-      x: style.left || 0,
-      y: style.top || 0,
+      left: style.left,
+      top: style.top,
+      right: style.right,
+      bottom: style.bottom,
     })
     // 绝对定位和固定定位在web上都会脱离文档流，因此需要设置zIndex让它相比正常流的元素更上层
     instance.zIndex(1)
   }
   if (style.position === 'relative') {
     instance.offset({
-      x: style.left || 0,
-      y: style.top || 0,
+      left: style.left,
+      top: style.top,
+      right: style.right,
+      bottom: style.bottom,
     })
     // 绝对定位和固定定位在web上都会脱离文档流，因此需要设置zIndex让它相比正常流的元素更上层
     instance.zIndex(1)
diff --git a/packages/taro-platform-harmony/src/runtime-ets/dom/stylesheet/covertWeb2Hm.ts b/packages/taro-platform-harmony/src/runtime-ets/dom/stylesheet/covertWeb2Hm.ts
index c49c68c8306..5307ace5199 100644
--- a/packages/taro-platform-harmony/src/runtime-ets/dom/stylesheet/covertWeb2Hm.ts
+++ b/packages/taro-platform-harmony/src/runtime-ets/dom/stylesheet/covertWeb2Hm.ts
@@ -594,9 +594,9 @@ function setBackgroundPosistion (hmStyle, value) {
     } else if (horizontal === 'right' && vertical === 'bottom') {
       hmStyle.backgroundPosition = Alignment.BottomEnd
     } else {
-      if (/^\d+(\.\d+)?(px|%|vw|vh)$/.test(horizontal)) {
+      if (/^-?\d+(\.\d+)?(px|%|vw|vh)$/.test(horizontal)) {
         hmStyle.backgroundPosition = { x: getUnit(horizontal) }
-        if (/^\d+(\.\d+)?(px|%|vw|vh)$/.test(vertical)) {
+        if (/^-?\d+(\.\d+)?(px|%|vw|vh)$/.test(vertical)) {
           hmStyle.backgroundPosition = { x: getUnit(horizontal), y: getUnit(vertical) }
         }
       }